Add proxy config (using gnome-network-preferences)

base/linux_util.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/linux_util.h"
 
 #include <stdlib.h>
 
 #include <vector>
 
@@ skipping 41 matching lines @@
         linux_distro = output.substr(field.length());
     }
     // We do this check only once per process. If it fails, there's
     // little reason to believe it will work if we attempt to run
     // lsb_release again.
     checked_distro = true;
   }
   return linux_distro;
 }
 
+bool UseGnomeForSettings() {
+  // GNOME_DESKTOP_SESSION_ID being defined is a good indication that
+  // we are probably running under GNOME.
+  // Note: KDE_FULL_SESSION is a corresponding env var to recognize KDE.
+  char* desktop_session;
+  return (getenv("GNOME_DESKTOP_SESSION_ID") ||
+          ((desktop_session = getenv("DESKTOP_SESSION")) &&
+           std::string(desktop_session) == "gnome"));
+}
+
 }  // namespace base